var webFXTreeConfig = {
    rootIcon        : '/images/xtreeview/x20-organicon.gif',
    openRootIcon    : '/images/xtreeview/x20-openorganicon.gif',
    folderIcon      : '/images/xtreeview/x20-foldericon.gif',
    openFolderIcon  : '/images/xtreeview/x20-openfoldericon.gif',
    fileIcon        : '/images/xtreeview/x20-file.gif',
    selectedIcon    : '/images/xtreeview/x20-selected.gif',
    iIcon           : '/images/xtreeview/x20-I.gif',
    lIcon           : '/images/xtreeview/x20-L.gif',
    lMinusIcon      : '/images/xtreeview/x20-Lminus.gif',
    lPlusIcon       : '/images/xtreeview/x20-Lplus.gif',
    tIcon           : '/images/xtreeview/x20-T.gif',
    tMinusIcon      : '/images/xtreeview/x20-Tminus.gif',
    tPlusIcon       : '/images/xtreeview/x20-Tplus.gif',
    blankIcon       : '/images/xtreeview/x20-blank.gif',
    defaultText     : 'Tree Item',
    defaultAction   : 'javascript:void(0);',
    defaultTarget   : '',
    defaultBehavior : 'classic',
    usePersistence  : true
};

var webFXTreeHandler = {
    idCounter : 0,
    idPrefix  : "webfx-tree-object-",
    all       : {},
    behavior  : null,
    selected  : null,
    onSelect  : null, /* should be part of tree, not handler */
    getId     : function() { return this.idPrefix + this.idCounter++; },
    toggle    : function (oItem) { this.all[oItem.id.replace('-plus','')].toggle(); },
    select    : function (oItem) { this.all[oItem.id.replace('-icon','')].select(); },
    focus     : function (oItem) { this.all[oItem.id.replace('-anchor','')].focus(); },
    blur      : function (oItem) { this.all[oItem.id.replace('-anchor','')].blur(); },
    keydown   : function (oItem, e) { return this.all[oItem.id].keydown(e.keyCode); },
    cookies   : new WebFXCookie(),
    insertHTMLBeforeEnd    :    function (oElement, sHTML) {
        if (oElement.insertAdjacentHTML != null) {
            oElement.insertAdjacentHTML("BeforeEnd", sHTML)
            return;
        }
        var df;    // DocumentFragment
        var r = oElement.ownerDocument.createRange();
        r.selectNodeContents(oElement);
        r.collapse(false);
        df = r.createContextualFragment(sHTML);
        oElement.appendChild(df);
    }
};

/*
 * WebFXCookie class
 */

function WebFXCookie() {
    if (document.cookie.length) { this.cookies = ' ' + document.cookie; }
}

WebFXCookie.prototype.setCookie = function (key, value) {
    document.cookie = key + "=" + escape(value);
}

WebFXCookie.prototype.getCookie = function (key) {
    if (this.cookies) {
        var start = this.cookies.indexOf(' ' + key + '=');
        if (start == -1) { return null; }
        var end = this.cookies.indexOf(";", start);
        if (end == -1) { end = this.cookies.length; }
        end -= start;
        var cookie = this.cookies.substr(start,end);
        return unescape(cookie.substr(cookie.indexOf('=') + 1, cookie.length - cookie.indexOf('=') + 1));
    }
    else { return null; }
}

/*
 * WebFXTreeAbstractNode class
 */

function WebFXTreeAbstractNode(sText, sAction, sTarget) {
    this.childNodes  = [];
    this.id     = webFXTreeHandler.getId();
    this.text   = sText || webFXTreeConfig.defaultText;
    this.action = sAction || webFXTreeConfig.defaultAction;
    this.target = sTarget || webFXTreeConfig.defaultTarget;
    this._last  = false;
    webFXTreeHandler.all[this.id] = this;
}

/*
 * To speed thing up if you're adding multiple nodes at once (after load)
 * use the bNoIdent parameter to prevent automatic re-indentation and call
 * the obj.ident() method manually once all nodes has been added.
 */

WebFXTreeAbstractNode.prototype.add = function (node, bNoIdent) {
    node.parentNode = this;
    this.childNodes[this.childNodes.length] = node;
    var root = this;
    if (this.childNodes.length >= 2) {
        this.childNodes[this.childNodes.length - 2]._last = false;
    }
    while (root.parentNode) { root = root.parentNode; }
    if (root.rendered) {
        if (this.childNodes.length >= 2) {
            document.getElementById(this.childNodes[this.childNodes.length - 2].id + '-plus').src = ((this.childNodes[this.childNodes.length -2].folder)?((this.childNodes[this.childNodes.length -2].open)?webFXTreeConfig.tMinusIcon:webFXTreeConfig.tPlusIcon):webFXTreeConfig.tIcon);
            this.childNodes[this.childNodes.length - 2].plusIcon = webFXTreeConfig.tPlusIcon;
            this.childNodes[this.childNodes.length - 2].minusIcon = webFXTreeConfig.tMinusIcon;
            this.childNodes[this.childNodes.length - 2]._last = false;
        }
        this._last = true;
        var foo = this;
        while (foo.parentNode) {
            for (var i = 0; i < foo.parentNode.childNodes.length; i++) {
                if (foo.id == foo.parentNode.childNodes[i].id) { break; }
            }
            if (i == foo.parentNode.childNodes.length - 1) { foo.parentNode._last = true; }
            else { foo.parentNode._last = false; }
            foo = foo.parentNode;
        }
        webFXTreeHandler.insertHTMLBeforeEnd(document.getElementById(this.id + '-cont'), node.toString());
        if ((!this.folder) && (!this.openIcon)) {
            this.icon = webFXTreeConfig.folderIcon;
            this.openIcon = webFXTreeConfig.openFolderIcon;
        }
        if (!this.folder) { this.folder = true; this.collapse(true); }
        if (!bNoIdent) { this.indent(); }
    }
    return node;
}

WebFXTreeAbstractNode.prototype.toggle = function() {
    if (this.folder) {
        if (this.open) { this.collapse(); }
        else { this.expand(); }
}    }

WebFXTreeAbstractNode.prototype.select = function() 
{
    document.getElementById(this.id + '-anchor').focus();
}

WebFXTreeAbstractNode.prototype.deSelect = function() {
    document.getElementById(this.id + '-anchor').className = '';
    if (!this.folder)    //FXQ added to indicate selected item
	{
		document.getElementById(this.id + '-icon').src = this.icon;
	}        
    
    webFXTreeHandler.selected = null;
}

WebFXTreeAbstractNode.prototype.focus = function() {
    if ((webFXTreeHandler.selected) && (webFXTreeHandler.selected != this)) { webFXTreeHandler.selected.deSelect(); }
    webFXTreeHandler.selected = this;
    if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.openIcon; }

    if (!this.folder)    //FXQ added to indicate selected item
	{
		document.getElementById(this.id + '-icon').src = webFXTreeConfig.selectedIcon;
	}        
    
    document.getElementById(this.id + '-anchor').className = 'selected';
    //document.getElementById(this.id + '-anchor').focus();
    if (webFXTreeHandler.onSelect) { webFXTreeHandler.onSelect(this); }
}

WebFXTreeAbstractNode.prototype.blur = function() {
    if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.icon; }
    document.getElementById(this.id + '-anchor').className = 'selected-inactive';
}

WebFXTreeAbstractNode.prototype.doExpand = function() {
    if (webFXTreeHandler.behavior == 'classic') { document.getElementById(this.id + '-icon').src = this.openIcon; }
    if (this.childNodes.length) {  document.getElementById(this.id + '-cont').style.display = 'block'; }
    this.open = true;
    if (webFXTreeConfig.usePersistence)
        webFXTreeHandler.cookies.setCookie(this.id.substr(18,this.id.length - 18), '1');
}

WebFXTreeAbstractNode.prototype.doCollapse = function() {
    if (webFXTreeHandler.behavior == 'classic') { document.getElementById(this.id + '-icon').src = this.icon; }
    if (this.childNodes.length) { document.getElementById(this.id + '-cont').style.display = 'none'; }
    this.open = false;
    if (webFXTreeConfig.usePersistence)
        webFXTreeHandler.cookies.setCookie(this.id.substr(18,this.id.length - 18), '0');
}

WebFXTreeAbstractNode.prototype.expandAll = function() {
    this.expandChildren();
    if ((this.folder) && (!this.open)) { this.expand(); }
}

WebFXTreeAbstractNode.prototype.expandChildren = function() {
    for (var i = 0; i < this.childNodes.length; i++) {
        this.childNodes[i].expandAll();
} }

WebFXTreeAbstractNode.prototype.collapseAll = function() {
    this.collapseChildren();
    if ((this.folder) && (this.open)) { this.collapse(true); }
}

WebFXTreeAbstractNode.prototype.collapseChildren = function() {
    for (var i = 0; i < this.childNodes.length; i++) {
        this.childNodes[i].collapseAll();
} }

WebFXTreeAbstractNode.prototype.indent = function(lvl, del, last, level, nodesLeft) {
    /*
     * Since we only want to modify items one level below ourself,
     * and since the rightmost indentation position is occupied by
     * the plus icon we set this to -2
     */
    if (lvl == null) { lvl = -2; }
    var state = 0;
    for (var i = this.childNodes.length - 1; i >= 0 ; i--) {
        state = this.childNodes[i].indent(lvl + 1, del, last, level);
        if (state) { return; }
    }
    if (del) {
        if ((level >= this._level) && (document.getElementById(this.id + '-plus'))) {
            if (this.folder) {
                document.getElementById(this.id + '-plus').src = (this.open)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.lPlusIcon;
                this.plusIcon = webFXTreeConfig.lPlusIcon;
                this.minusIcon = webFXTreeConfig.lMinusIcon;
            }
            else if (nodesLeft) { document.getElementById(this.id + '-plus').src = webFXTreeConfig.lIcon; }
            return 1;
    }    }
    var foo = document.getElementById(this.id + '-indent-' + lvl);
    if (foo) {
        if ((foo._last) || ((del) && (last))) { foo.src =  webFXTreeConfig.blankIcon; }
        else { foo.src =  webFXTreeConfig.iIcon; }
    }
    return 0;
}

/*
 * WebFXTree class
 */

function WebFXTree(sText, sAction, sTarget, sBehavior, sIcon, sOpenIcon) {
    this.base = WebFXTreeAbstractNode;
    this.base(sText, sAction, sTarget);
    this.icon      = sIcon || webFXTreeConfig.rootIcon;
    this.openIcon  = sOpenIcon || webFXTreeConfig.openRootIcon;
    /* Defaults to open */
    if (webFXTreeConfig.usePersistence)
        this.open  = (webFXTreeHandler.cookies.getCookie(this.id.substr(18,this.id.length - 18)) == '0')?false:true;
    else
        this.open  = true;
    this.folder    = true;
    this.rendered  = false;
    this.onSelect  = null;
    if (!webFXTreeHandler.behavior) {  webFXTreeHandler.behavior = sBehavior || webFXTreeConfig.defaultBehavior; }
}

WebFXTree.prototype = new WebFXTreeAbstractNode;

WebFXTree.prototype.setBehavior = function (sBehavior) {
    webFXTreeHandler.behavior =  sBehavior;
};

WebFXTree.prototype.getBehavior = function (sBehavior) {
    return webFXTreeHandler.behavior;
};

WebFXTree.prototype.getSelected = function() {
    if (webFXTreeHandler.selected) { return webFXTreeHandler.selected; }
    else { return null; }
}

WebFXTree.prototype.remove = function() { }

WebFXTree.prototype.expand = function() {
    this.doExpand();
}

WebFXTree.prototype.collapse = function(b) {
    if (!b) { this.focus(); }
    this.doCollapse();
}

WebFXTree.prototype.getFirst = function() {
    return null;
}

WebFXTree.prototype.getLast = function() {
    return null;
}

WebFXTree.prototype.getNextSibling = function() {
    return null;
}

WebFXTree.prototype.getPreviousSibling = function() {
    return null;
}

WebFXTree.prototype.keydown = function(key) {
    if (key == 39) {
        if (!this.open) { this.expand(); }
        else if (this.childNodes.length) { this.childNodes[0].select(); }
        return false;
    }
    if (key == 37) { this.collapse(); return false; }
    if ((key == 40) && (this.open) && (this.childNodes.length)) { this.childNodes[0].select(); return false; }
    return true;
}

WebFXTree.prototype.toString = function() {
    var str = "<table border=0 cellspacing=0 cellpadding=0><tr><td><table border=0 cellspacing=0 cellpadding=0><tr id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">";
    str += "<td width=18><img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\"></td>";
    str += "<td nowrap><div class=webfx-tree-item><a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\""+((this.target!='')?' target=\"'+this.target+'\"':'')+">" + this.text + "</a></div></td></tr></table></td></tr>";
    if (this.childNodes.length>0){
        str += "<tr id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open)?'block':'none') + ";\">";
        str += "<td>";
        str += "<table border=0 cellspacing=0 cellpadding=0>";
        for (var i = 0; i < this.childNodes.length; i++) {
            str += "<tr><td>";
            str += this.childNodes[i].toString(i, this.childNodes.length);
            str += "</td></tr>";
        }
        str += "</table></td></tr>";
    }
    str += "</table>";
    this.rendered = true;
    return str;
};

/*
 * WebFXTreeItem class
 */

function WebFXTreeItem(sText, sAction, sTarget, eParent, sIcon, sOpenIcon) {
    this.base = WebFXTreeAbstractNode;
    this.base(sText, sAction, sTarget);
    /* Defaults to close */
    if (webFXTreeConfig.usePersistence)
        this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18,this.id.length - 18)) == '1')?true:false;
    else
        this.open = false;
    if (sIcon) { this.icon = sIcon; }
    if (sOpenIcon) { this.openIcon = sOpenIcon; }
    if (eParent) { eParent.add(this); }
}

WebFXTreeItem.prototype = new WebFXTreeAbstractNode;

WebFXTreeItem.prototype.remove = function() {
    var iconSrc = document.getElementById(this.id + '-plus').src;
    var parentNode = this.parentNode;
    var prevSibling = this.getPreviousSibling(true);
    var nextSibling = this.getNextSibling(true);
    var folder = this.parentNode.folder;
    var last = ((nextSibling) && (nextSibling.parentNode) && (nextSibling.parentNode.id == parentNode.id))?false:true;
    this.getPreviousSibling().focus();
    this._remove();
    if (parentNode.childNodes.length == 0) {
        document.getElementById(parentNode.id + '-cont').style.display = 'none';
        parentNode.doCollapse();
        parentNode.folder = false;
        parentNode.open = false;
    }
    if (!nextSibling || last) { parentNode.indent(null, true, last, this._level, parentNode.childNodes.length); }
    if ((prevSibling == parentNode) && !(parentNode.childNodes.length)) {
        prevSibling.folder = false;
        prevSibling.open = false;
        iconSrc = document.getElementById(prevSibling.id + '-plus').src;
        iconSrc = iconSrc.replace('minus', '').replace('plus', '');
        document.getElementById(prevSibling.id + '-plus').src = iconSrc;
        document.getElementById(prevSibling.id + '-icon').src = webFXTreeConfig.fileIcon;
    }
    if (document.getElementById(prevSibling.id + '-plus')) {
        if (parentNode == prevSibling.parentNode) {
            iconSrc = iconSrc.replace('minus', '').replace('plus', '');
            document.getElementById(prevSibling.id + '-plus').src = iconSrc;
}    }    }

WebFXTreeItem.prototype._remove = function() {
    for (var i = this.childNodes.length - 1; i >= 0; i--) {
        this.childNodes[i]._remove();
     }
    for (var i = 0; i < this.parentNode.childNodes.length; i++) {
        if (this == this.parentNode.childNodes[i]) {
            for (var j = i; j < this.parentNode.childNodes.length; j++) {
                this.parentNode.childNodes[j] = this.parentNode.childNodes[j+1];
            }
            this.parentNode.childNodes.length -= 1;
            if (i + 1 == this.parentNode.childNodes.length) { this.parentNode._last = true; }
            break;
    }    }
    webFXTreeHandler.all[this.id] = null;
    var tmp = document.getElementById(this.id);
    if (tmp) { tmp.parentNode.removeChild(tmp); }
    tmp = document.getElementById(this.id + '-cont');
    if (tmp) { tmp.parentNode.removeChild(tmp); }
}

WebFXTreeItem.prototype.expand = function() {
    this.doExpand();
    document.getElementById(this.id + '-plus').src = this.minusIcon;
}

WebFXTreeItem.prototype.collapse = function(b) {
    if (!b) { this.focus(); }
    this.doCollapse();
    document.getElementById(this.id + '-plus').src = this.plusIcon;
}

WebFXTreeItem.prototype.getFirst = function() {
    return this.childNodes[0];
}

WebFXTreeItem.prototype.getLast = function() {
    if (this.childNodes[this.childNodes.length - 1].open) { return this.childNodes[this.childNodes.length - 1].getLast(); }
    else { return this.childNodes[this.childNodes.length - 1]; }
}

WebFXTreeItem.prototype.getNextSibling = function() {
    for (var i = 0; i < this.parentNode.childNodes.length; i++) {
        if (this == this.parentNode.childNodes[i]) { break; }
    }
    if (++i == this.parentNode.childNodes.length) { return this.parentNode.getNextSibling(); }
    else { return this.parentNode.childNodes[i]; }
}

WebFXTreeItem.prototype.getPreviousSibling = function(b) {
    for (var i = 0; i < this.parentNode.childNodes.length; i++) {
        if (this == this.parentNode.childNodes[i]) { break; }
    }
    if (i == 0) { return this.parentNode; }
    else {
        if ((this.parentNode.childNodes[--i].open) || (b && this.parentNode.childNodes[i].folder)) { return this.parentNode.childNodes[i].getLast(); }
        else { return this.parentNode.childNodes[i]; }
} }

WebFXTreeItem.prototype.keydown = function(key) {
    if ((key == 39) && (this.folder)) {
        if (!this.open) { this.expand(); }
        else { this.getFirst().select(); }
        return false;
    }
    else if (key == 37) {
        if (this.open) { this.collapse(); }
        else { this.parentNode.select(); }
        return false;
    }
    else if (key == 40) {
        if (this.open) { this.getFirst().select(); }
        else {
            var sib = this.getNextSibling();
            if (sib) { sib.select(); }
        }
        return false;
    }
    else if (key == 38) { this.getPreviousSibling().select(); return false; }
    return true;
}

WebFXTreeItem.prototype.toString = function (nItem, nItemCount) {
    var foo = this.parentNode;
    var indent = '';
    if (nItem + 1 == nItemCount) { this.parentNode._last = true; }
    var i = 0;
    while (foo.parentNode) {
        foo = foo.parentNode;
        indent = "<td><img id=\"" + this.id + "-indent-" + i + "\" src=\"" + ((foo._last)?webFXTreeConfig.blankIcon:webFXTreeConfig.iIcon) + "\"></td>" + indent;
        i++;
    }
    this._level = i;
    if (this.childNodes.length) { this.folder = 1; }
    else { this.open = false; }
    if ((this.folder) || (webFXTreeHandler.behavior != 'classic')) {
        if (!this.icon) { this.icon = webFXTreeConfig.folderIcon; }
        if (!this.openIcon) { this.openIcon = webFXTreeConfig.openFolderIcon; }
    }
    else if (!this.icon) { this.icon = webFXTreeConfig.fileIcon; }
    var label = this.text.replace(/</g, '&lt;').replace(/>/g, '&gt;');
    var str = "<table border=0 cellspacing=0 cellpadding=0><tr><td><table border=0 cellspacing=0 cellpadding=0><tr id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">";
    str += indent;
    str += "<td><img id=\"" + this.id + "-plus\" src=\"" + ((this.folder)?((this.open)?((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon):((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon)):((this.parentNode._last)?webFXTreeConfig.lIcon:webFXTreeConfig.tIcon)) + "\" onclick=\"webFXTreeHandler.toggle(this);\"></td>"
    str += "<td width=18><img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\">";
    str += "<td nowrap><div class=webfx-tree-item><a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\""+((this.target!='')?' target=\"'+this.target+'\"':'')+">" + label + "</a></div></td></tr></table></td></tr>"
    if (this.childNodes.length>0){
        str += "<tr id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open)?'block':'none') + ";\">";
        str += "<td>";
        str += "<table border=0 cellspacing=0 cellpadding=0>";
        for (var i = 0; i < this.childNodes.length; i++) {
            str += "<tr><td>";
            str += this.childNodes[i].toString(i,this.childNodes.length);
            str += "</td></tr>";
        }
        str += "</table></td></tr>";
    }
    str += "</table>";
    this.plusIcon = ((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon);
    this.minusIcon = ((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon);
    return str;
}